[MVMA] LoRa

[Chuck Gelm]

On 4/29/21 2:52 PM, bobf at omegaiq.com wrote:
>
> QMesh: A Synchronized, Flooded Mesh Network Protocol for Voice 
> <https://files.tapr.org/meetings/DCC_2020/2020DCC_KG5VBY.pdf>  by Dan 
> Fray, KG5VBY
>
Hi, Bob:

  That was a fun read. Thanks.

With the AREDN firmware the routing is automatic-adaptive.
So, regarding the local implementation of our AREDN mesh network,
these 2 lines in the above document contradict:
Page 3/17 [115]:
/Typically, mesh networks can handle nodes entering and leaving the 
network while still maintaining a functioning network./
.vs.
Page 4/17 [116]
/Routed protocols, where nodes only repeat packets if they are along a 
defined route, are more efficient, but more challenging to build and 
maintain working routes at network conditions change./

Open source 'Automatic-Adaptive routing protocols' have existed since 
circa <= 1989.
Currently this AREDN firmware [circa 2015 to date] has a self-building 
and self-healing routing protocol.
This feature comes with
- reduced throughput and
+ freedom from needing to maintain route configurations.

LoRa: up to 27 kbps and long range is up to 10 km under 'perfect 
conditions'. Can handle 1 voice grade channel.
AREDN firmware: up to 130,000 kbps and long range is up to 50 km in 
practice.

AREDN compatible devices are off the shelf, many commercial grade, many 
outdoor rated, and $50 and up.

Chuck

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